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Question
Is the following equation quadratic?
x2 - 2x + 5 = x2
Solution
x2 - 2x + 5 = x2
x2 - x2 - 2x + 5 = 0
-2x + 5 = 0
Here, x is the only variable & the maximum index of the variable is not 2.
It is not in the form of quadratic equation.
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